Narendra agencies manufactures offers air filter units. These air filter units that are uniquely constructed designed for normal ambient conditions prevailing in the vicinity. These comprise of heat resistant abs plastic housing [for temperatures up to 70°c] with filter pad within the housing. Air filter unit it serves the twin purpose of providing cooling and preventing condensation within the enclosure while keeping dust and moisture out of the enclosure. The air filter units are distinctive, aesthetic, functional and safe. Outer housing of the quick assembly filter is designed to prevent rain droplets from wetting the inside outer housing of the quick assembly filter is constructed. Inner housing has been designed uniquely to maximise air volume inner housing has been designed and minimise noise generation of the fan mounted on it. This part of housing is fully compatible for mounting fans of all existing fan modules, part of housing is compatible. Heart of the air filter unit is a thick filter pad made of non woven synthetic fabric. The pad of the air filter unit has high filtration properties and is capable of trapping dust grain of size as small as 10 microns. Its washable nature makes it fit for repeated use. There is no requirement of any tools for replacement from the housing does not require any tools. The air filter units are available in two sizes: 130 x 130 mm and 230 x 230 mm. The air filter units they are fully compatible with standard cutouts. Installation is easy.